tests

Backend rewrite for v1.0 #428

Job	Run time
Code Quality	51s
Build distribution and test installation	1m 15s
Tests (ubuntu-latest, Python 3.8)	45s
Docs preview	1m 5s
Tests (ubuntu-latest, Python 3.9)	51s
Tests (ubuntu-latest, Python 3.10)	46s
Tests (ubuntu-latest, Python 3.11)	47s
Tests (ubuntu-latest, Python 3.12)	59s
Tests (macos-latest, Python 3.8)	1m 54s
Tests (macos-latest, Python 3.9)	2m 39s
Tests (macos-latest, Python 3.10)	2m 21s
Tests (macos-latest, Python 3.11)	1m 52s
Tests (macos-latest, Python 3.12)	2m 5s
Notify failed build	0s
	18m 10s

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